CN100377038C - Electrical-saving computing device and computing method, electrical-saving computing programm and programm products - Google Patents

Electrical-saving computing device and computing method, electrical-saving computing programm and programm products Download PDF

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Publication number
CN100377038C
CN100377038C CNB2004100080873A CN200410008087A CN100377038C CN 100377038 C CN100377038 C CN 100377038C CN B2004100080873 A CNB2004100080873 A CN B2004100080873A CN 200410008087 A CN200410008087 A CN 200410008087A CN 100377038 C CN100377038 C CN 100377038C
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change
power consumption
power saving
power
consumption
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CN1530798A (en
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加藤慎介
山本哲士
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Panasonic Holdings Corp
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Matsushita Electric Industrial Co Ltd
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    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/08—Means for collapsing antennas or parts thereof
    • H01Q1/084—Pivotable antennas
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/324—Power saving characterised by the action undertaken by lowering clock frequency
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3265—Power saving in display device
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3268—Power saving in hard disk drive
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/26—Power supply means, e.g. regulation thereof
    • G06F1/32—Means for saving power
    • G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
    • G06F1/3234—Power saving characterised by the action undertaken
    • G06F1/325—Power saving in peripheral device
    • G06F1/3275—Power saving in memory, e.g. RAM, cache
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/36—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith
    • H01Q1/38—Structural form of radiating elements, e.g. cone, spiral, umbrella; Particular materials used therewith formed by a conductive layer on an insulating support
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q9/00—Electrically-short antennas having dimensions not more than twice the operating wavelength and consisting of conductive active radiating elements
    • H01Q9/04—Resonant antennas
    • H01Q9/06—Details
    • H01Q9/065—Microstrip dipole antennas
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0267—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level by controlling user interface components
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04W—WIRELESS COMMUNICATION NETWORKS
    • H04W52/00—Power management, e.g. TPC [Transmission Power Control], power saving or power classes
    • H04W52/02—Power saving arrangements
    • H04W52/0209—Power saving arrangements in terminal devices
    • H04W52/0261—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level
    • H04W52/0287—Power saving arrangements in terminal devices managing power supply demand, e.g. depending on battery level changing the clock frequency of a controller in the equipment
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
    • Y02D30/00—Reducing energy consumption in communication networks
    • Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks

Abstract

A device information administrator 21 detects a fluctuation in a total consumed power of a power-consuming device group 18 and determines and outputs a consumed power to be changed by any of devices in the power-consuming device group 18 so as to suppress this fluctuation. A power-save determinator 23 generates and outputs a control command for at least one device of the power-consuming device group 18 so that the total consumed power of the power-consuming device group 18 changes in accordance with the consumed power to be changed outputted from the device information administrator 21. A device controller 25 controls at least one device corresponding to the control command outputted from the power-save determinator 23 in accordance with the control command.

Description

Power saving calculation element and computing method thereof
Technical field
The present invention relates to a kind of power saving calculation element and computing method thereof, power saving calculation procedure and program product thereof, be applicable to the have CPU information handling system of (central calculation processing unit), be used for suppressing the change of total power consumption of a plurality of apparatuses.
Background technology
Mobile phone, notebook computer etc. all provide power supply by battery, are popularized thereby make mobile communication become possible system.In order to use the limited electric power in this system effectively, adopted various about suppressing the power conservation techniques of power consumption.As such power conservation techniques, as Japanese patent gazette put down into 8-314587 number (the 7th page, Fig. 1) shown in, can be the power consumption that is suppressed at each apparatus in the system, thereby perhaps the overall work of observing system suppresses technology such as power consumption.
Yet power conservation techniques in the past exists such problem, thereby changes the power consumption of this apparatus when also changing when the duty of the apparatus that consumes electric power thereupon, can't suppress the change of power consumption of the unit interval of entire system.And battery has such specific character, even the semi-invariant of power consumption is identical, when the change of power consumption was big more, the rechargeable energy that consumed within a short period of time will be big more.So the existing problem of power conservation techniques in the past is, can not suppress to follow power consumption to change unhelpful the expending of the battery charge energy that is produced, thereby shorten the life-span (that is, having consumed the desired time of rechargeable energy) of battery with there is no need.
Summary of the invention
The present invention is in order to solve the above problems, and purpose is to provide a kind of power saving calculation element and computing method, power saving calculation procedure and program product thereof, can suppress the change of total power consumption of one or more power consumption apparatuses.
Power saving calculation element provided by the present invention comprises that power consumption that change, decision and the output of the total electricity consumption that is used for detecting one or more apparatuses that consume electric power should change is so that suppress the apparatus information management unit of described change; The described power consumption that should change according to described apparatus information management unit output, the steering order that generation and output are controlled at least one apparatus in described one or more apparatuses is so that the power saving that described total power consumption changes decision unit; Control the apparatus control module of described at least one apparatus according to the described steering order of described power saving decision unit output.
According to this structure, because apparatus information management unit, detect change, the decision of the total electricity consumption of one or more apparatuses that consume electric power and export the power consumption that should change, so that suppress this change, so, power consumption by utilizing output to change reaches any apparatus in one or more apparatuses is controlled, thereby can suppress the change that total electricity consumes.
Because the power consumption that should change according to the output of apparatus information management unit, produce and export the steering order that at least one apparatus is controlled, so that total power consumption changes, and control at least one apparatus according to this steering order, so, can suppress the change that total electricity consumes.
The described power saving decision unit of power saving calculation element of the present invention, also in storely a kind of the described power consumption that should change is transformed into the rule of the steering order that described one or more each apparatus is controlled, described power saving decision unit is according to described rule produces and output is controlled described at least one apparatus described steering order.
According to this structure, because the power saving decision in store a kind of power consumption that should change in unit is transformed into the rule of the steering order that one or more each apparatus is controlled, and according to this steering order that rule produces and output is controlled at least one apparatus, so steering order is easy to produce.
A kind of power saving calculation element provided by the present invention, also comprise a storage unit, be used for storing the described power consumption that should change is transformed into rule to the steering order that can append, control as the apparatus of described one or more apparatuses, when the described apparatus that can append is appended in the described more than one apparatus, described apparatus information management unit will be corresponding with the described apparatus that appends and the described rule that is stored in the described storage unit be kept at described power saving decision unit.
According to this structure, owing to comprise that one is used for storing the power consumption that should change and is transformed into the storage unit to the rule of the steering order controlled as the apparatus of one or more apparatuses that can append, when the apparatus that can append is appended in the one or more apparatus, the apparatus information management unit will be corresponding with the apparatus that is appended and the rule that is stored in the storage unit be kept at power saving decision unit, so, when the apparatus that can append was added, power saving decision unit can produce and export the steering order that the apparatus that is appended is controlled.
The apparatus control module of power saving calculation element of the present invention, can also have a control situation management table, this table is preserved the information about the action of each apparatus of at least a portion of described one or more apparatuses and work allowed band, exceeded in described action under the situation of described allowed band, forbidden described power saving decision unit output and described action control corresponding instruction.
According to this structure, because the apparatus control module has a control situation management table, this table is preserved the information about the action of each apparatus of at least a portion of an above apparatus and work allowed band, exceeded in action under the situation of allowed band, forbid power saving decision unit output and the instruction of action control corresponding, so, can avoid action to continue to exceed allowed band.
The apparatus control module of power saving calculation element of the present invention, can also have a control situation management table, this table is preserved the information in the permission elapsed time of the work of carrying out about the action of each apparatus of at least a portion of a described above apparatus with according to steering order, institute's elapsed time has exceeded under the situation in described permission elapsed time transfer to the work of carrying out according to steering order in described action after, forbids described power saving decision unit output and described action control corresponding instruction.
According to this structure, because the apparatus control module has a control situation management table, this table is preserved the information in the permission elapsed time of the work of carrying out about the action of each apparatus of at least a portion of an above apparatus with according to steering order, institute's elapsed time has exceeded under the situation in permission elapsed time transfer to the work of carrying out according to steering order in action after, forbid power saving decision unit output and described action control corresponding instruction, so, can avoid the work carried out according to steering order to surpass the time period that is allowed to and further continue.
And, on the one or more apparatus of power saving calculation element of the present invention, also connecting as the power-supply battery of giving described one or more apparatus power supply, described apparatus information management unit, when detecting described total electricity consumption when the direction that reduces changes, be only limited to the effect of when described total power consumption minimizing is inhibited, described battery being saved electric power, than described total power consumption minimizing brought to described battery save the effect of electric power will good situation under, just determine and export the described power consumption that should change.
According to this structure, owing on one or more apparatus, connecting battery as the power supply of giving one or more apparatus power supply, the apparatus information management unit, when detecting total power consumption when the direction that reduces changes, be only limited to the effect of when total power consumption minimizing is inhibited, battery being saved electric power, than total power consumption reduce brought to battery save the effect of electric power will good situation under, just determine and export the power consumption that should change, so, the life-span that can keep battery for long periods.
The apparatus information management unit of power saving calculation element provided by the present invention, can also preserve the changing pattern of described one or more apparatus power consumption separately, the perhaps changing pattern that consumes of the total electricity of described one or more apparatus, testing result according to the total electricity consumption of described any one pattern and described more than one apparatus change, predict the future value that described total electricity consumes, the described power consumption that should change is also exported in decision, changes as the future that described total power consumption changes so that suppress.
According to this structure, because apparatus information management unit, the changing pattern of in store one or more apparatus power consumption separately, the perhaps changing pattern that consumes of the total electricity of one or more apparatus, testing result according to the total electricity consumption of its any one pattern and more than one apparatus change, the future value that the prediction total electricity consumes, the power consumption that decision and output should change, so that suppress change in future as total power consumption change, thereby can under situation about not delaying, realize control to apparatus, to suppress the change that total electricity consumes, therefore, can more efficiently suppress total power consumption change.
And power saving calculation element provided by the present invention can also be set among the described one or more apparatus.
According to this structure, owing to the power saving calculation element is set among the one or more apparatus, so, can suppress to comprise this total electricity consumption change of power saving calculation element in an interior above apparatus.
The present invention also provides a kind of power saving computing method, and it comprises, detects the step of total power consumption change of an above apparatus that consumes electric power; The power consumption that decision should change is to suppress the step of described change; According to the described power consumption that should change that is determined, produce the steering order that at least one apparatus in the described above apparatus is controlled, so that the step that described total power consumption changes; Control the step of described at least one apparatus according to the described steering order that is produced.
According to this structure, owing to include the step of the total power consumption change that detects an above apparatus that consumes electric power, the power consumption that decision should change, with the step that suppresses described change, according to the described power consumption that should change that is determined, the steering order that generation is controlled at least one apparatus in the described above apparatus, so that step that described total power consumption changes and the step of controlling described at least one apparatus according to the described steering order that is produced, so, can suppress the change of total power consumption.
The present invention also provides a kind of power saving calculation procedure, and realization on computers detects the function of total power consumption change of an above apparatus that consumes electric power, the power consumption that decision should change just suppresses the function that detected described total power consumption changes.
According to this structure, owing to can realize detecting the function of total power consumption change of an above apparatus that consumes electric power, power consumption that decision should change on computers to suppress the function of detected total power consumption change, so, by utilizing the determined power consumption that should change, control any apparatus in the above apparatus, thereby can suppress the change of total power consumption.
The present invention also provides a kind of program product, comprises storing the function that can realize detecting the total power consumption change of the more than one apparatus that consumes electric power on computers, power consumption that decision should change to suppress the functional programs of detected described total power consumption change; Preserve medium with the signal of preserving described program.
According to this structure, owing to can realize detecting the function of total power consumption change of one or more apparatuses that consume electric power, power consumption that decision should change on computers to suppress the function of detected total power consumption change, so, by utilizing the determined power consumption that should change, control any apparatus in one or more apparatuses, thereby can suppress the change of total power consumption.
And the signal of program product provided by the present invention is preserved medium, can be among recording medium and the transfer medium at least one of them.According to this structure, because program can be stored at least in one of them of recording medium or transfer medium, so just can pass through these medium, allow program realize the function of defined on computers.
In sum, the present invention can suppress to consume the change that the total electricity of an above apparatus of electric power consumes.So,, thereby prolong its serviceable life if, then can improve the power saving performance of this battery with the power supply of battery as one or more apparatuses.
Description of drawings:
Fig. 1 is the block scheme that the system architecture of the power saving calculation element with embodiment of the invention 1 is described.
Fig. 2 is the synoptic diagram that illustrates the apparatus information management table content of Fig. 1.
Fig. 3 is the synoptic diagram that illustrates the instruction map table content of Fig. 1.
Fig. 4 is the synoptic diagram that illustrates the control situation management table content of Fig. 1.
Fig. 5 is the process flow diagram of working routine of the power saving calculation element of key diagram 1.
Fig. 6 is the process flow diagram of working routine of the apparatus information management unit of key diagram 1.
Fig. 7 is the process flow diagram of working routine of the apparatus control module of key diagram 1.
Fig. 8 is the shop drawing of the power saving calculation element of key diagram 1.
Fig. 9 is the shop drawing of the power saving calculation element of key diagram 1.
Figure 10 is the shop drawing of the power saving calculation element of key diagram 1.
Figure 11 is the shop drawing of the power saving calculation element of key diagram 1.
Figure 12 is the shop drawing of the power saving calculation element of key diagram 1.
Figure 13 is the shop drawing that explanation apparatus information management unit is predicted the future value of each apparatus power consumption.
Embodiment
Below, be illustrated with regard to embodiments of the present invention.
The 1st embodiment:
Fig. 1 is the block scheme of an example of the system of the power saving calculation element of explanation with embodiment of the invention 1.This system 200 comprises as a mobile communications device, power supply source 17, power consumption apparatus group 18 and power saving calculation element 101.Power supply source 17 is to the power supply that is included in each the apparatus power supply among the power consumption apparatus group 18, is battery in the example of Fig. 1.Power consumption apparatus group 18 comprises an apparatus that consumes electric power at least, in the example of Fig. 1, comprises CPU11, HDD (hard disk) 12, RAM13, power amplifier 14, back lighting (back-light) 15 and communication CPU16.CPU11 based on the program that is stored among RAM13 or the HDD12, comes the function of realization system 200, for example, and communication function, Presentation Function, data storage function, data read function etc.Power amplifier 14 for example can be a kind of amplifier of amplification system 200 to the signal of general bureau's transmission that be used for.Back lighting 15 for example can be the light source that is used in such as on the LCD (LCD).CPU16 is used in communication, based on the program that is stored among RAM13 or the HDD12, takes on the function of the especially communication interface in system's 200 functions.
Power saving calculation element 101 is used to control each apparatus of power consumption apparatus group 18, so that suppress the change that power consumption apparatus group 18 total electricity consumes, it comprises apparatus information management unit 21, power saving decision unit 23 and apparatus control module 25.And apparatus information management unit 21 also has an apparatus information management table 22, and there is an instruction map table 24 power saving decision unit 23, and apparatus control module 25 then has a control situation management table 26.
Power saving calculation element 101 can not need the hardware of program to constitute by one, but preferably can realize by the CPU that program is operated.So then can relatively easily constitute power saving calculation element 101.And, also can deal with the change of the apparatus that constitutes power consumption apparatus group 18 flexibly, for example apparatus appends and cancels.Realize power saving calculation element 101 functional programs (hereinafter referred to as the power saving calculation procedure), be equivalent to OS (operating system) by the basic operation of CPU regulation.The power saving calculation procedure is stored in such as among RAM13 or the HDD12 (being equivalent to storage unit of the present invention).
The power saving calculation procedure can provide by recording mediums 31 such as ROM, flexible plastic disc, CD-ROM, also can provide by transfer mediums such as telephone line, network 33.In Fig. 1, as recording medium 31, indicate CD-ROM, as transmission medium 33, indicate by communication and use CPU16 and connected telephone line as communication interface.Be routed to power consumption apparatus group 18 by CD-ROM reading device 32 is appended, then can read the power saving calculation procedure that is stored among the CD-ROM, and then can be stored to HDD12 or RAM13 again.When providing the power saving calculation procedure with the form as the ROM of recording medium 31, by this ROM is appended to power consumption apparatus group 18, power saving calculation element 101 just can be carried out the operational processes according to the power saving calculation procedure.Power saving calculation procedure by transmission medium 33 provides can be received with CPU16 by communication, and store into such as HDD12 or RAM13.Transmission medium 33 has more than and is confined to wired transmission medium, also can be wireless transmission medium.
Realize the CPU of the function of power saving calculation element 101, can be other the CPU beyond the CPU11, but had better just use CPU11.If the CPU and the CPU11 that play a role as power saving calculation element 101 are same, then not only do not need to be provided with in addition special-purpose CPU, also can reach the advantage of the total electricity consumption change of the system 200 that suppresses to comprise power saving calculation element 101.Perhaps, realize the CPU of the function of power saving calculation element 101, can be as other the CPU beyond the CPU11, but preferably be installed in 18 li of power consumption apparatus groups together, and become the controlling object of power saving calculation element 101 with CPU11.As mentioned above, power saving calculation element 101 is not limited to and must constitutes with the form of separating with power consumption apparatus group 18, on the contrary preferably is included in 18 li of power consumption apparatus groups.
Apparatus information management unit 21, the working condition of each apparatus is preserved as input information, in whole power consumption (being called total electricity consumption) of power consumption apparatus group 18 when change has taken place, this variation is compensated, for the variation that makes total electricity consumption remains on Min., one or the power consumption that should change (to call the power consumption that should change in the following text) of more than one any apparatus among decision and the output power consumption apparatus group 18.Apparatus information management unit 21 need not specify the apparatus that power consumption is changed, and just determines and export make total electricity consumption what change.For example, when changing to 120W, for the change that makes total electricity consumption remains on Min., apparatus information management unit 21 can be exported the negative 20W as the power consumption that should change from 100W (watt) in total electricity consumption.
The apparatus information management table 22 that apparatus information management unit 21 is had, is total power consumption at the electric power that more than one power consumption apparatus, each apparatus among the in store power consumption apparatus group 18 consumed, the aggregate value of the electric power that whole apparatus consumed among the power consumption apparatus group 18.Fig. 2 is the synoptic diagram with an example of form funerary objects tool information management table 22.As shown in Figure 2, apparatus information management unit 21 detects the power consumption of each apparatus among the power consumption apparatus group 18 repeatedly, detects resulting power consumption (deserving to be called inferior power consumption) for last time and detect resulting power consumption (claiming present power consumption) specifically to the major general to be kept in the apparatus information management table 22.
In the example of Fig. 2, power consumption as last time, the information that apparatus information management table 22 is preserved is, CPU11 be 100W, HDD12 be 60W, RAM13 be 40W, power amplifier 14 for 10W, back lighting 15 be that the total electricity consumption of 30W, its total is 300W for 0W, communication with CPU16.Total electricity consumption is by apparatus information management unit 21 power consumption of each apparatus to be added together to obtain.In the example of Fig. 2, as present power consumption, the information that apparatus information management table 22 is preserved is, CPU11 from the 100W of last time rise to 150W, back lighting 15 rises to 20W from the 0W of last time, other apparatus is then keeping the numerical value same with last time.Consequently, apparatus information management table 22 present total power consumption of being preserved has risen to 370W from the 300W of last time.
The total electricity that apparatus information management unit 21, the subtraction by total electricity consumption detect last time is depleted to the change amount that present total electricity consumes.In the example of Fig. 2, be subtraction, and drawn the change amount of one+70W by 370W-300W.In order to make total electricity consumption reach minimum, apparatus information management unit 21 can draw the power consumption that should change and be-70W.
Power saving decision unit 23, the power consumption that should change according to given condition, are transformed into apparatus steering order and output with this power consumption as input information.The instruction map table 24 that power saving decision unit 23 is had is preserved with the corresponding apparatus that should implement to control of power consumption that should change with to the steering order of this apparatus.Instruction map table 24 is in store, such as the condition to CPU11, perhaps to condition of RAM13 etc.Just, the in store transformation rule of instruction map table 24 is about to the power consumption that should change as input information and is transformed into steering order to should controlled apparatus controlling.
Fig. 3 is the synoptic diagram with an example of form declarative instruction map table 24.In the example of Fig. 3, when the power consumption that should change during, make the work clock umber of pulse of CPU11 change negative 10Hz (hertz) for-10W, that is, preserve the work clock umber of pulse that the makes CPU11 instruction that the instruction and stopping of 10Hz powers to RAM13 of slowing down.If one of any being performed in these two instructions then can realize making the power consumption of power consumption apparatus group 18 apparatus only to change-10W, be the content of being preserved in the hurdle of form left end, thereby make the change of total electricity consumption reach minimum.
In the example of Fig. 3, instruction map table 24 is also in store to instruct corresponding working mark with each.As described below, working mark is set or is removed by apparatus control module 25.Power saving decision unit 23 can not select working mark to be set to 1 instruction, and can only select working mark to be disengaged to be 0 instruction.Single instruction not only can be selected in power saving decision unit 23, also can select the combination of a plurality of instructions.Such as, in the power consumption that should change during for-30W, power saving decision unit 23 can select to make the brightness of back lighting 15 only to reduce by 1 single instruction, also can select simultaneously to reduce CPU11 work clock umber of pulse 10Hz instruction and stop instruction to the HDD12 power supply.
Possible being chosen as under the multiple situation, wherein one of any can be selected by the priority ranking of being given in power saving decision unit 23.For example, can allow the control of the work clock umber of pulse that changes CPU11 preferential.Perhaps, also can set the instruction in hurdle on Fig. 3 higher relative importance value is arranged.In the latter case, power saving decision unit 23 selects to go up instruction or the instruction group in the hurdle as much as possible earlier.For example, in the power consumption that should change during for-30W, power saving decision unit 23 only reduces in the brightness of selecting to make back lighting 15 before 1 the single instruction, select earlier to reduce CPU11 work clock umber of pulse 10Hz instruction and stop instruction to the HDD12 power supply.Priority ranking can be set arbitrarily.
In the example of Fig. 3, provide the power consumption that should change with the interval of 10W.In the case, for example, apparatus information management unit 21 can be exported 10W value at interval as the power consumption that should change.Perhaps, power saving decision unit 23 also can from instruction map table 24, select should reference with the immediate value conduct of the power consumption that should change of apparatus information management unit 21 outputs power consumption.No matter be which kind of situation, the interval that is kept at the power consumption that should change in the instruction map table 24 is set more for a short time, just can suppress the change that total electricity consumes more more accurately.In addition, in example shown in Figure 3, to a kind of power consumption that should change, set to only one at the most of the steering order of an apparatus.Yet in general, the steering order to an apparatus corresponding with a kind of power consumption that should change as long as can carry out simultaneously, also can be a plurality of.
Apparatus control module 25 determines instruction that unit 23 sends as input information power saving, instructs according to this and controls each apparatus that belongs to power consumption apparatus group 18.The instruction of " with the work clock umber of pulse of the CPU11 20Hz that slows down " that in a single day apparatus control module 25 receives that power saving decision unit 23 sends, then the assembly instruction by this instruction map being become to carry out " the work clock umber of pulse 20Hz of the CPU11 that slows down " etc. is controlled CPU11.Except the assembly instruction of controlling CPU11, control the assembly instruction of HDD12, the assembly instruction of control RAM13, the assembly instruction of control power amplifiers 14, the assembly instruction of control back lighting 15, the assembly instruction that CPU16 is used in control communication etc. in addition.As such assembly instruction, because of known, so, will omit its detailed explanation here.
The control situation management table 26 that apparatus control module 25 is had, the common working value of the apparatus that in store apparatus control module 25 is controlled (for example, the work clock umber of pulse of CPU11 is 200Hz), present working value (for example, the work clock umber of pulse of CPU11 is 100Hz), controllable maximal work value (for example, CPU11 can not work when discontented 50Hz etc.), present working value from moment that common working value begins to change elapsed time of process, and change the possible limit elapsed time (for example, time clock is controlled sustainable 10 seconds concerning CPU11).
Fig. 4 is the synoptic diagram that an example of control situation management table 26 is described with form.In Fig. 4, control situation management table 26, preserve with each apparatus correspondingly, common working value, present working value, maximal work value (upper and lower bound), change the elapsed time and change through limit time as the controlling object of apparatus control module 25.Common working value is the working value of system 200 when being in steady state (SS), present working value be apparatus control module 25 to the content of the control that apparatus carried out, in other words, be controlled exactly and in the present action of the apparatus of work.Present working value is the steering order according to 23 outputs of power saving decision unit, be configured to common working value different value.Therefore, the present working value that is different from common working value is corresponding with the steering order of power saving decision unit 23 outputs.With a corresponding steering order of the power consumption that should change to an apparatus be that working value also correspondingly has multiple under a plurality of situation.
The maximal work value is meant, by the ultimate value of the working value scope that can obtain allowing that characteristic determined of apparatus.Changing the elapsed time is meant, from common working value institute's elapsed time after the working value that reaches present has taken place to change.Change through limit time being meant,, just allow the elapsed time changing the ultimate value that the elapsed time can allow.Common working value, maximal work value and variation all are the constants that provides in advance through limit time.In contrast to this, present working value and variation elapsed time then are parameters.Apparatus control module 25, owing to present working value and the variation elapsed time that can grasp as each apparatus that belongs to power consumption apparatus group 18 of controlling object, so, can upgrade these parameters in the control situation management table 26 at any time.Such as, present working value is to change and when coming from common working value, can be by setting not shown timer, and calculate at an easy rate and change the elapsed time.
In the example of Fig. 4, with regard to CPU11, common working value is 200Hz, and present working value is 100Hz, and the maximal work value is limited to 300Hz on it, is limited to 50Hz under it, and changing the elapsed time is 5 seconds, and changing through limit time is 10 seconds.And, whether the situation of working value can be arranged also for power amplifier 14.In general, can be to maximal work value capping and lower limit, but as the example of RAM13 and the example of power amplifier 14, the situation that one of them of upper and lower bound also can be arranged or neither set.With regard to RAM13 and HDD12, " On " is opening power, just means to begin power supply, and " Off " cuts off the electricity supply, and promptly means and stops power supply.About back lighting 15, brightness settings 0～5 expression comprises the brightness settings of 6 grades of brightness 0.
For certain apparatus, if present working value has exceeded the maximal work value, the then control this apparatus carried out in order to be restricted to the compensation that realizes total electricity consumption of apparatus control module 25, and the working mark corresponding with this work in the instruction of instruction map table 24 is set at 1.Thus, can avoid present working value and continue to go beyond the limit of working value.
And, for certain apparatus, surpassed and changed in case change the elapsed time through limit time, the then control this apparatus carried out in order to be restricted to the compensation that realizes total electricity consumption of apparatus control module 25, and working mark corresponding with this work in the instruction of instruction map table 24 is set at 1.Therefore, if the instruction that " the work clock pulse of CPU11 is reduced 10Hz " is carried out after 10 seconds surpassing to change through limit time, then the corresponding working mark of instruction with " with the work clock pulse reduction 10Hz of CPU11 " in the instruction map table 24 is set at 1.At this moment, the instruction of " the work clock pulse of CPU11 is reduced 10Hz " just can not have been selected in power saving decision unit 23.Thereupon, apparatus control module 25 then finishes according to the performed CPU11 control of the instruction of " the work clock pulse of CPU11 is reduced 10Hz ".Therefore, can avoid the work of the CPU11 that carries out according to steering order, surpass the limit time that is allowed and proceed.Like this, instruction map table 24 information of being preserved can obtain upgrading according to the information of preserving in the control situation management table 26.
And the information of each apparatus that the information that instruction map table 24 is preserved also can be preserved according to apparatus information management unit 21 obtains upgrading.Shown in example, in instruction map table 24, only can preserve the instruction of a specially appointed apparatus, also can preserve instruction to an above apparatus.In instruction map table 24, do not preserve the instruction of the apparatus that can not control apparatus control module 25.
Having new apparatus to be appended under power consumption apparatus group 18 the situation, relevant information of appending apparatus is appended in the apparatus information management table 22, and thereupon, the information of relevant this apparatus also is appended in the instruction map table 24.As the example that appends new apparatus, when enlarging memory space, can outside input and output apparatuses such as printer, mouse be coupled together by USB interface setting up RAM13.And when certain apparatus is removed, then delete the information of the relevant apparatus that is removed in the apparatus information management table 22 from power consumption apparatus group 18, and simultaneously, the also information of relevant this apparatus in the delete instruction map table 24.
For example, when power consumption apparatus group 18 sets up the printer of a new apparatus of conduct, be used for realizing that the program of the OS of power saving calculation element 101 functions can detect setting up of printer at an easy rate.Therefore, the power consumption that apparatus information management unit 21 can the printer that opening entry is set up in apparatus information management table 22, apparatus control module 25 then can begin to control the printer of newly establishing.And print driver also is installed among this OS in advance, and this print driver comprises the instruction that should be kept at the relevant printer in the instruction map table 24, and should be kept at the common information such as working value in the control situation management table 26.Thus, apparatus information management unit 21 can append the instruction of the relevant printer of being set up in instruction map table 24, apparatus control module 25 then can append relevant printer in control situation management table 26 information.
Should be noted that, when power consumption apparatus group 18 total electricity consumption when the direction that reduces changes, apparatus information management unit 21 not necessarily must decide and export the power consumption that should change for suppressing this variation.Under the situation that power consumption apparatus group 18 total electricity consumption reduces, comparatively it is desirable to, apparatus information management unit 21 is two kinds of power saving effects relatively, when the change that is about to power consumption apparatus group 18 total electricity consumption remains on Min. to the above-mentioned power saving effect that minimizing brought as the power saving effect of the battery of power supply source 17 and power consumption apparatus group's 18 total electricity consumption, if the above-mentioned power saving effect that minimizing brought of power consumption apparatus group 18 total electricity consumption is relatively good, the then power consumption that should not change to 23 outputs of power saving decision unit.This is because under the situation that total electricity consumption reduces, no matter its minimizing more can improve power saving effect than suppressing to reduce, thereby can long term maintenance as life-span of the battery of power supply source 17.
Fig. 5 is the process flow diagram of working routine of the power saving calculation element 101 of explanation present embodiment.The apparatus information management unit 21 of power saving calculation element 101 is being managed the information (step 101) of the apparatus in the power consumption apparatus group 18.Apparatus information management unit 21 is judged power consumption apparatus group 18 total electricity consumption whether change (step 102) according to institute's information of managing.If variation has taken place in power consumption, 21 of apparatus information management units judge that power consumption is to increase or reduce (step 103).If power consumption does not change, 21 of apparatus information management units continue the information of the apparatus in the management power consumption apparatus group 18.
In step 103, if total electricity consumption increases, then for the change with power consumption apparatus group 18 total electricity consumption remains on Min., the power consumption that 21 decisions of apparatus information management unit should change, and to 23 outputs (step 104) of power saving decision unit.If total electricity consumption reduces, two kinds of power saving effects of 21 comparisons of apparatus information management unit, promptly, total electricity consumption minimizing brought to remaining on the above-mentioned power saving effect (step 105) that Min. is brought as the power saving effect of the battery of power supply source 17 with the change of total electricity consumption, if the latter's power saving effect is better, the then power consumption (step 105) that should change to 23 outputs of power saving decision unit.If the former power saving effect is better, then turn back to step 101, apparatus information management unit 21 is managed the information of the apparatus in the power consumption apparatus group 18 more again.
Power saving decision unit 23 is with reference to instruction map table 24 (step 106), if the corresponding instruction of the power consumption that should change of preserving and importing in this table, the power consumption that should change that then will import is transformed into corresponding instruction (step 107).If there is not corresponding instruction, then turn back to step 101 is continued the information of the apparatus in the management power consumption apparatus group 18 by apparatus information management unit 21 common state.In case the power consumption that power saving decision unit 23 should change is transformed into corresponding instruction (step 107), its instruction then is fed to apparatus control module 25, carries out this instruction (step 108) at apparatus control module 25.
Fig. 6 is the process flow diagram of working routine of apparatus information management unit 21 of the power saving calculation element 101 of explanation present embodiment.Apparatus information management unit 21 is being managed the information (step 201) of the apparatus in the power consumption apparatus group 18.Apparatus information management unit 21 has judged whether that new apparatus increases (step 202), if increase is arranged, judges then whether its apparatus is controllable apparatus (step 203).If this apparatus is controllable apparatus, 21 instructions (step 204) of on the instruction map table 24 of power saving decision unit 23, appending relevant this apparatus of apparatus information management unit.If in step 203, judging above-mentioned apparatus is uncontrollable apparatus, and 21 information to the apparatus in the power consumption apparatus group 18 of apparatus information management unit are proceeded management.
In step 202, if judge do not have new apparatus to increase, 21 of apparatus information management units have judged whether that apparatus reduces (step 205).If minimizing is arranged, apparatus information management unit 21 judges whether this apparatus is controllable apparatus (step 206).If controllable apparatus, 21 instructions (step 207) of apparatus information management unit from relevant this apparatus of instruction map table 24 li deletion of power saving decision unit 23.In step 205 and step 206, if all be to negate separately, the information that 21 of apparatus information management units return the apparatus in the power consumption apparatus group 18 manages.
Fig. 7 is the process flow diagram of working routine of apparatus control module 25 of the power saving calculation element 101 of explanation present embodiment.Apparatus control module 25 is controlled certain apparatus A (step 301) according to instruction.Then, the information (step 302) in the control situation management table 26 of renewal apparatus control module 25.Secondly, apparatus control module 25 judges whether the present working value that is updated has reached the limit elapsed time (step 303) that can change from moment institute's elapsed time that common working value begins to change.If negate, apparatus control module 25 judges then whether the present working value in the control situation management table 26 reaches controllable maximal work value (step 304).If in step 303 or step 304 is certainly, then avoid apparatus control module 25 from the instruction map table 24 of power saving decision unit 23, to select control to described certain apparatus A, just the working mark with correspondence is set at 1 (step 305), and turns back to step 303.
If for negative, 25 of apparatus control modules judge whether to have avoided the control of selecting described certain apparatus A from the instruction map table 24 of power saving decision unit 23 in step 304, just whether Dui Ying working mark has been set to 1 (step 306).If avoided, 25 of apparatus control modules are removed and are avoided, and promptly remove corresponding working mark and become 0 (step 307), and operational processes enters the step (step 308) of waiting for instruction next time.If do not avoid, the operational processes of apparatus control module 25 then directly enters the step (step 308) of waiting for instruction next time.
Total electricity consumption and time relation figure after Fig. 8～Figure 11 has represented the detected power consumption apparatus group 18 who comes of the apparatus information management unit 21 of present embodiment respectively by order from top to bottom total electricity consumption and time relation figure, the power consumption that should change relative with it and time relation figure, apparatus control module 25 execute instruction.In addition, in chart, even replace the total electricity consumption of apparatus information management unit 21 " detection " with the total electricity consumption of the following apparatus information management unit 21 " predictions " that will illustrate, its result also is identical.
The power consumption of the power consumption apparatus group's 18 that the curve 51 expression apparatus information management units 21 of Fig. 8 are managed total electricity consumption when moment t1 has consumed during t2 that regulation electric power is above.At this moment, apparatus information management unit 21 during the t2, determines the power consumption that should change, at moment t1 shown in curve 52.Its result, as the total electricity consumption after apparatus control module 25 execution commands, shown in curve 53, its change will remain on Min..
The power consumption apparatus group's 18 that the curve 61 expression apparatus information management units 21 of Fig. 9 are managed total electricity consumption is in moment t1 power consumption during less than setting during t2.At this moment, apparatus information management unit 21 determines the power consumption that should change, shown in curve 62.Its result, overall as power consumption apparatus group 18, shown in curve 63, at moment t1 during the t2, total electricity consumption minimizing.In addition, if the power saving effect that minimizing brought of total electricity consumption is better than the power saving effect that the change that keeps total electricity consumption is brought when the Min., Fig. 9 then is equivalent to the situation that apparatus information management unit 21 is judged.
The power consumption apparatus group's 18 that the curve 71 expression apparatus information management units 21 of Figure 10 are managed total electricity consumption has surpassed setting, power consumption when also continuing to keep this value afterwards at moment t1 during t2.At this moment, apparatus information management unit 21 during the t2, determines the power consumption that should change, at moment t1 shown in curve 72.Its result, as the total electricity consumption after apparatus control module 25 execution commands, shown in curve 73, change will remain on Min..Under the situation of restricted time of control of 25 pairs of apparatuses of apparatus control module, for example, can not allow the power consumption of apparatus also continue later on to reduce at moment t2, so, during the t3, make the power consumption of the apparatus that is controlled recover reduction at moment t2 as much as possible gradually.
The power consumption apparatus group's 18 that the curve 81 expression apparatus information management units 21 of Figure 11 are managed total electricity consumption moment t1 during t2 less than setting, power consumption when also continuing to keep this value afterwards.At this moment, the power consumption that 21 decisions of apparatus information management unit should change is shown in curve 82.Its result, power consumption apparatus group 18 total electricity consumption shown in curve 83, reduces during t2 at moment t1.In addition, if the power saving effect that minimizing brought of total electricity consumption is better than the power saving effect that the change that keeps total electricity consumption is brought when the Min., Figure 11 then is equivalent to the situation that apparatus information management unit 21 is judged.
The power saving calculation element 101 of present embodiment, its structure and operation are just as described above, the change of power consumption apparatus group 18 total electricity consumption can be suppressed within the Min..Thus, can save rechargeable energy as the battery of power supply source 17.
In addition, after total electricity consumption has taken place to change, till beginning according to the power consumption that should change the power consumption of apparatus controlled, a delay may take place, and this delay to be the program of power saving calculation element 101 carry out that section of round-robin very short time.Yet owing to can insert a capacitor 30 (as shown in Figure 1) that is used for level and smooth supply voltage usually in power consumption apparatus group 18, like this, the temporary transient change of power consumption apparatus group 18 total electricity consumption can be absorbed.Therefore, as Fig. 8～shown in Figure 11, even above-mentioned described delay takes place, the change of total electricity consumption also can be suppressed in Min..
And, power saving calculation element 101 is under the situation of mobile training equipment etc. in system 200, if use the battery as power supply source 17, then can by with other different structures of effect of saving the battery charge energy, further prolong the time that may use of system 200.When the rechargeable energy (so-called residual capacity of battery) as the battery of power supply source 17 is lower than a setting, 200 judgements of system " no residual capacity of battery " thus power cut-off.Because power saving calculation element 101 can suppress the minimizing rapidly of battery charge energy, therefore can prolong the working time of system 200.Figure 12 is the synoptic diagram that is explained.
Curve 91 expression of Figure 12 is in the past the residual capacity of battery that system grasped and the time relation that do not have power saving calculation element 101.In system in the past, when residual capacity of battery was tending towards reducing, if the power consumption of apparatus sharply increases, then (t91 constantly) also appearred reducing sharp in residual capacity of battery, and at that constantly, " no residual capacity of battery " and power cut-off are then judged by system.That is to say that system in the past is in then power cut-off of moment t91.
Residual capacity of battery and time relation that curve 92 expressions of Figure 12 are grasped the system 200 with power saving calculation element 101.As can be seen from the figure, by the work of power saving calculation element 101, sharply increase (t91 constantly) even the power consumption of apparatus occurred when residual capacity of battery reduces, system also can suppress the rapid variation of residual capacity of battery.Its result, system 200 can work the moment of original " no residual capacity of battery " (constantly t92) with power saving calculation element 101 always.Further, again owing to work, can suppress the change that total electricity consumes by power saving calculation element 101, thereby can suppress the unhelpful consumption of battery charge energy, so, shown in curve 93, compared with system in the past, the minimizing degree of residual capacity of battery comparatively relaxes.Its result, system 200 moment t93 more late that can work than moment t92.
The 2nd embodiment:
Power saving decision unit 23 also can replace instruction map table 24, preserves the power consumption that should change and to the relation of the steering order of apparatus, the i.e. rule of conversion with the form of conditional.Conditional can be used as 23 work of regulation power saving decision unit program a part or be stored among RAM13 or the HDD12 as the comparable data of program institute reference.For example, when the power consumption that should change was x (W), power saving decision unit 23 can obtain the work clock umber of pulse y (Hz) of variable CPU11 according to the conditional of y=ax.
More specifically, power saving decision unit 23 in a single day receive as the power consumption that should change-the information input of 20W, then according to its information, (be equivalent in the above-mentioned conditional according to conditional such as " power consumption of the watt(W) of the variation=should change of the work clock umber of pulse of the hertz unit of CPU11 ", coefficient a=1), content is exported to apparatus control module 25 for the instruction of " making the work clock umber of pulse of CPU11 slow down 20 hertz ".
Below for the example beyond the number of C PU11, can adopt " power consumption of the watt(W) of the variation of the work rotation number of HDD12=should change ", " power consumption/10 of the watt(W) of the variation of the number of the RAM13 of work=should change ", " power consumption of the watt(W) of the variation of the power consumption of the watt(W) of power amplifier 14=should change ", " power consumption/20 of the watt(W) that the brightness of back lighting 15 change=should change ", conditionals such as " communications with the power consumption of the watt(W) of the variation of the work clock umber of pulse of hertz unit of CPU16=should change ".
The power saving calculation element 101 that can obtain upgrading by apparatus information management unit 21 as the content of instruction map table 24, the conditional that power saving decision unit 23 is preserved, thus also can obtain upgrading formation power saving calculation element 101 by apparatus information management unit 21.For example, with regard to certain apparatus B, in conditional according to " power consumption of the watt(W) of the variation=should change of the work clock umber of pulse of the hertz unit of apparatus B ", under the situation of the variable-operation clock pulses number of the corresponding apparatus B of power consumption that determines and should change, in case apparatus B is appended to power consumption apparatus group 18, the information of apparatus B just is appended in the apparatus information management table 22 of apparatus information management unit 21, thereupon, above-mentioned relational expression also is appended in program or the comparable data.
For example, above-mentioned conditional is write in the device driver of apparatus B, and this device driver is installed in can realize in power saving calculation element 101 functional programs as OS.As illustrating, can be stored among RAM13 or the HDD12 (corresponding to storage unit of the present invention) as the program of OS (operating system).Thus, apparatus information management unit 21 along with the apparatus B that continues in system 200, can be appended to above-mentioned conditional in the program or comparable data of being preserved power saving decision unit 23.Conditional is appended in the program or comparable data of being preserved power saving decision unit 23, also comprise power saving can be determined program that unit 23 preserved in advance the conditional in the write device driver quote as routine library.
Can select can be according to the information that is kept in the control situation management table 26 time as being stored in instruction in the instruction map table 24, the time and don't can select the power saving calculation element that constituted 101 the same, the conditional that power saving decision unit 23 is preserved also can be according to the information that is kept in the control situation management table 26, the Shi Erke reference, thus the time and don't can be with reference to constituting power saving calculation element 101.For example, with with the corresponding form of conditional the symbol of condition for identification formula (for example with), the data that will be equivalent to the working mark of instruction map table 24 are saved in not carrying out in the illustrated register that RAM13, HDD12 or CPU11 have, and power saving decision unit 23 can be by with reference to this working mark, from working mark be disengaged and become select 0 the conditional should reference project.
The 3rd embodiment:
Apparatus information management unit 21 can adopt various forms as a kind of structure that is used for detecting the power consumption of each apparatus that belongs to power consumption apparatus group 18.For example, on the power lead of each apparatus, insert resistor, descend, can obtain being flowing in the source current in each apparatus by measuring the voltage that on this resistor, takes place.Because certain relation is arranged between source current and the power consumption, so, detect electric current and just be equal to detection power consumption.
When realizing the function of power saving calculation element 101 by the program as OS, apparatus information management unit 21 can be held the working condition of each apparatus by the function of OS, thus, can estimate power consumption.For example, each apparatus in the system 200 is to its working conditions of apparatus information management unit 21 output, and apparatus information management unit 21 is the working condition of each apparatus in the saved system then.Apparatus information management unit 21 can grasp the power consumption of each apparatus according to the information of being preserved.Up to the present, this function that OS had has been well-known as the OS function of carrying on PC.According to such OS function, when apparatus information management unit 21 detects the power consumption of each apparatus, then do not need to be provided with the special hardware parts such as resistive element that those are used to measure source current.
Apparatus information management unit 21 also can detect power consumption apparatus group 18 total electricity consumption by measuring the electric current of supplying as the battery of power supply source 17.For example, on the power lead that the source current that power supply source 17 supplies are arranged is flowing, insert resistor, descend, then can obtain the source current that power supply source 17 is supplied by measuring the voltage that on this resistor, takes place.And the electric power of the source current of power supply source 17 supply and power supply source 17 supplies, be between power consumption apparatus group 18 the total electricity consumption certain relation to be arranged.Therefore, apparatus information management unit 21 can be by detecting the total electricity consumption that source current that power supply source 17 supplied detect power consumption apparatus group 18.Apparatus information management unit 21, for the change that makes detected total electricity consumption remains on Min., decision and the power consumption that should change to 23 outputs of power saving decision unit.
In addition, the detection of power consumption is no matter be with which type of form to carry out, under the situation that power consumption reduces, apparatus information management unit 21, all will to the change that keeps total electricity consumption when the Min. to comparing as the power saving effect of the battery of power supply source 17 and the above-mentioned power saving effect that minimizing brought of total electricity consumption, if the power saving effect that minimizing brought of total electricity consumption is relatively good, the then power consumption that should not change to 23 outputs of power saving decision unit, in this, the structure of apparatus information management unit 21 is equal to the apparatus information management unit 21 of the power saving calculation element 101 of the 1st embodiment.
The 4th embodiment:
Apparatus information management unit 21 also can be predicted the future value of the power consumption of each apparatus that belongs to power consumption apparatus group 18, replaces detecting the power consumption of each apparatus that belongs to power consumption apparatus group 18 with this.Thus, apparatus information management unit 21 can be predicted the future value that power consumption apparatus group 18 total electricity consumes.And apparatus information management unit 21 also can directly be predicted the future value that power consumption apparatus group 18 total electricity consumes.For example, the power consumption apparatus group's 18 who is grasped at apparatus information management unit 21 total electricity consumption has under the situation of certain pattern the total electricity consumption that apparatus information management unit 21 can be predicted power consumption apparatus group 18 future according to its certain pattern.At this moment, apparatus information management unit 21 can decide the power consumption that should change according to the total electricity consumption of being predicted, so that the change of total electricity consumption is remained on Min., and to 23 outputs of power saving decision unit.In order to realize this prediction, apparatus information management unit 21 can be saved in the changing pattern of power consumption among RAM13 or the HDD12 etc.
Below, apparatus information management unit 21 is predicted that the object lesson of the power consumption future value of each apparatus describes.The working condition that belongs to certain apparatus C of power consumption apparatus group 18 has two kinds, and under these two kinds of working conditions, each power consumption (watt) as shown in figure 13, is determined.Power saving calculation element 101 as the function of OS, is what can grasp corresponding to the power consumption of two kinds of working conditions of apparatus C.When apparatus information management unit 21 obtains the working condition information of apparatus C at moment t11, because the power consumption of apparatus C has been increased to W2 from W1, so apparatus information management unit 21 can predict that following power consumption is W3.Apparatus information management unit 21 is kept at future value W3 in the apparatus information management table 22 (Fig. 2) as the present power consumption of apparatus C, and decision power consumption apparatus group 18 total electricity consumption.Apparatus information management unit 21 also according to the total electricity consumption that is determined be kept at the total electricity consumption of the last time in the apparatus information management table 22, calculates the variation that total electricity consumes.The variation that apparatus information management unit 21 consumes according to the total electricity that calculates again, the power consumption that should change one among the power consumption apparatus group 18 or more than one any apparatus decision, and carry to power saving decision unit 23.
When apparatus information management unit 21 obtains the working condition information of apparatus C at moment t12, because the power consumption of apparatus C is reduced to W2 from W3, so following power consumption of apparatus information management unit 21 predictions is W1.Apparatus information management unit 21 as the present power consumption of apparatus C and be kept in the apparatus information management table 22 (Fig. 2), decides power consumption apparatus group 18 total electricity consumption with future value W1.Below same, the power consumption that 21 decisions of apparatus information management unit should change, and carry to power saving decision unit 23.In order to realize this prediction, apparatus information management unit 21 is preferably in the changing pattern of preserving the power consumption of apparatus C among RAM13 or the HDD12, for example can adopt as the W1 of power consumption and the changing pattern of two values of W3.
As mentioned above, in the power saving calculation element 101 of present embodiment, because apparatus information management unit 21 prediction belongs to the future value that power consumption apparatus group 18 the future value of power consumption of each apparatus or power consumption apparatus group's 18 total electricity consumes, and decide the power consumption that should change according to the future value of being predicted, therefore can be in every control that under the situation of time delay, realizes apparatus, with the change of compensation total electricity consumption.Like this, can suppress the change that total electricity consumes effectively.
The 5th embodiment:
In the 1st embodiment, though power saving calculation element 101 includes apparatus information management unit 21, yet, also can adopt form with apparatus information management unit 21.For example, can adopt when variation has taken place 18 li of power consumption apparatus groups' the electric power that more than one apparatus consumed, thereby these apparatuses can constitute the power consumption information that has changed the form of power saving calculation elements 101 to 23 outputs of power saving decision unit.At this moment, power saving decision unit 23, the power consumption information according to having changed decides an instruction that above apparatus is controlled that may change the power consumption of offsetting its variation, specially appointed, and to 25 outputs of apparatus control module.This specially appointed more than one apparatus is controlled in 25 instructions according to input of apparatus control module.
For example, when the power consumption of power amplifier 14 had increased 10W, the information that its power consumption information that has changed is 10W was transported to power saving decision unit 23.23 of power saving decision unit are according to the information that has increased 10W, the information that the instruction map that the power consumption that can offset its variation changes, promptly reduces 10W becomes " power consumption of CPU11 is reduced 10W ", just " the work clock umber of pulse of CPU11 reduced 10Hz " decides the instruction of control device.25 instruction maps that " the work clock umber of pulse of CPU11 reduced 10Hz " by the general of apparatus control module become the assembler directive of control device, according to instruction apparatus are controlled.
Other embodiment
In each above-mentioned embodiment, apparatus information management unit 21, for the change with power consumption apparatus group 18 total electricity consumption remains on Min., just in order to compensate the change that total electricity consumes, and the more than one any apparatus among the power consumption apparatus group 18 has been determined the power consumption that should change.If the change that total electricity consumes is+20W that 21 output-20W of apparatus information management unit are as the power consumption that should change.Yet apparatus information management unit 21 also can not exclusively reach the degree of compensation total electricity consumption change, the degree relatively to relax just, decides the power consumption that should change.The change that consumes such as, total electricity be+during 20W, apparatus information management unit 21 can export-and power consumption that the 10W conduct should change.Like this, the change of total electricity consumption is relaxed, and correspondingly also can reach the effect of the battery life that prolongs power supply source 17.
That is to say that under general situation, as long as apparatus information management unit 21 can determine the power consumption that should change, (comprise full remuneration and relax compensation) is just passable thereby make the change of total electricity consumption be inhibited.But under the situation that total electricity consumption reduces, apparatus information management unit 21 is based on the power saving effect to the battery of power supply source 17, also can it continue to reduce at one's discretion, replace suppressing the minimizing that total electricity consumes with this, about this point, described in the 1st embodiment.
Power saving calculation element involved in the present invention and its computing method, power saving calculation procedure and program product can suppress to consume the change that the total electricity of an above apparatus of electric power consumes, so, can be used in widely on the various industries.

Claims (9)

1. power saving calculation element is characterized in that comprising:
The apparatus information management unit is used for detecting the change that the total electricity of one or more apparatuses that consume electric power consumes, and decision also output is intended to suppress the power consumption that should change of described change;
Power saving decision unit, the described power consumption that should change according to described apparatus information management unit output, the steering order that generation and output are controlled at least one apparatus in described one or more apparatuses is so that described total power consumption changes;
The apparatus control module according to the described steering order of described power saving decision unit output, is controlled described at least one apparatus.
2. power saving calculation element according to claim 1 is characterized in that:
Described power saving decision unit, preserve the rule that the described power consumption that should change is transformed into the steering order that described one or more each apparatus is controlled, and, produce and export the described steering order that described at least one apparatus is controlled according to described rule.
3. power saving calculation element according to claim 2 is characterized in that also comprising:
Storage unit is used to store the described power consumption that should change is transformed into rule to the steering order that can append, control as the apparatus of described one or more apparatuses;
Described apparatus information management unit, when the described apparatus that can append is appended in the described more than one apparatus, will be with the apparatus that is appended corresponding and described rule that be stored in the described storage unit be saved in described power saving decision unit.
4. power saving calculation element according to claim 1 is characterized in that:
Described apparatus control module, has a control situation management table, the action of at least a portion of in store relevant described one or more apparatuses of this table and the information of the allowed band of working, exceeded in described action under the situation of described allowed band, forbidden described power saving decision unit output and the corresponding steering order of described action.
5. power saving calculation element according to claim 1 is characterized in that:
Described apparatus control module, has a control situation management table, the information in the permission elapsed time of action of the in store at least a portion about described one or more apparatuses of this table and the work carried out according to steering order, institute's elapsed time has exceeded under the situation in described permission elapsed time transfer to the work of carrying out according to steering order in described action after, forbids described power saving decision unit output and described action control corresponding instruction.
6. according to wherein any one described power saving calculation element of claim 1 to 5, it is characterized in that:
Connecting on the described one or more apparatus as the battery of power supply being provided for described one or more apparatus;
Described apparatus information management unit, when detecting described total electricity consumption when the direction that reduces changes, the power saving effect of described battery when the minimizing of described total electricity consumption is inhibited only, the minimizing of more described total electricity consumption bring to the power saving effect of described battery will good situation under, just determine and export the described power consumption that should change.
7. according to wherein any one described power saving calculation element of claim 1 to 5, it is characterized in that:
Described apparatus information management unit, the changing pattern of the power consumption separately of in store described one or more apparatuses, the perhaps changing pattern that consumes of the total electricity of described one or more apparatuses, testing result according to the total electricity consumption of described any one pattern and described one or more apparatuses change, predict the future value that described total electricity consumes, decision is also exported the described power consumption that should change, so that suppress the change in future as described total electricity consumption change.
8. according to wherein any one described power saving calculation element of claim 1 to 5, it is characterized in that: described power saving calculation element is set among the described one or more apparatus.
9. power saving computing method is characterized in that comprising:
Detect the step of the total electricity consumption change of one or more apparatuses that consume electric power;
The power consumption that decision should change is so that suppress the step of detected described total electricity consumption change;
According to the described power consumption that should change that is determined, produce the steering order that at least one apparatus in described one or more apparatuses is controlled, so that the step that described total power consumption changes;
According to the described steering order that is produced, control the step of described at least one apparatus.
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